Two former Parramatta Eels players are accused of harbouring semi-automatic weapons and possessing more than half-a-million dollars in cash after dramatic arrests in Sydney's Centennial Park yesterday.

Slain cop's dad 'more than devastated'

The father of slain Sydney police officer Bill Crews has told a court he was more than devastated when he learned his son had been shot on duty.

Kelvin Crews was home alone on September 8, 2010, when he took a phone call from his elder son Ben.

Ben said, "Dad, Dad, Bill's been shot. It's not good," Kelvin Crews said during sentencing submissions for Philip Nguyen, who has pleaded guilty to manslaughter and to wounding Constable Crews with intent to cause grievous bodily harm.

"Devastation cannot begin to describe what was felt by me when our son phoned that night," Kelvin Crews told the NSW Supreme Court on Friday.

"There's no light at the end of the tunnel."

Const Crews was 26 when he was shot during a drug search in a basement carpark at Bankstown in Sydney's southwest three years ago.

Nguyen did not fire the fatal shot but was charged with manslaughter on the grounds of "excessive self-defence".